Abstract

We propose an add–drop filter with an unlimited free spectral range (FSR). The device is based on grating-assisted contradirectional couplers with silicon-on-insulator ridge waveguides. The intrawaveguide coupling is significantly diminished by distancing the periodically structured corrugated waveguide away from the straight input waveguide. Based on this asymmetric structure, calculated results show that the peak reflectivity of the intrawaveguide coupling is lower than 0.1 dB, while that of the contradirectional coupling is higher than 20 dB. An experimental result of 1.8 dB for the intrawaveguide coupling is obtained. A narrow drop-port bandwidth of 0.8 nm is also achieved experimentally.

© 2012 Optical Society of America

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References

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G. Jiang, R. Chen, Q. Zhou, J. Yang, M. Wang, and X. Jiang, IEEE Photon. Technol. Lett. 23, 6 (2011).

W. Shi, X. Wang, W. Zhang, L. Chrostowski, and N. A. F. Jaeger, Opt. Lett. 36, 3999 (2011).
[CrossRef]

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K. Ikeda, M. Nezhad, and Y. Fainman, Appl. Phys. Lett. 92, 201111 (2008).
[CrossRef]

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H. Yamada, T. Chu, S. Ishida, and Y. Arakawa, Appl. Phys. Lett. 86, 191107 (2005).
[CrossRef]

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V. R. Almeida, C. A. Barrios, R. R. Panepucci, and M. Lipson, Nature 431, 1081 (2004).
[CrossRef]

1996 (1)

L. Dong, P. Hua, T. A. Birks, L. Reekie, and P. St. J. Russell, IEEE Photon. Technol. Lett. 8, 1656 (1996).
[CrossRef]

1990 (1)

C. A. Brackett, IEEE J. Sel. Areas Commun. 8, 948(1990).
[CrossRef]

1980 (1)

1974 (1)

D. C. Flanders, H. Kogelnik, R. V. Schmidt, and C. V. Shank, Appl. Phys. Lett. 24, 194 (1974).
[CrossRef]

1973 (1)

A. Yariv, IEEE J. Quantum Electron. 9, 919 (1973).
[CrossRef]

Almeida, V. R.

V. R. Almeida, C. A. Barrios, R. R. Panepucci, and M. Lipson, Nature 431, 1081 (2004).
[CrossRef]

Arakawa, Y.

H. Yamada, T. Chu, S. Ishida, and Y. Arakawa, Appl. Phys. Lett. 86, 191107 (2005).
[CrossRef]

Barrios, C. A.

V. R. Almeida, C. A. Barrios, R. R. Panepucci, and M. Lipson, Nature 431, 1081 (2004).
[CrossRef]

Birks, T. A.

L. Dong, P. Hua, T. A. Birks, L. Reekie, and P. St. J. Russell, IEEE Photon. Technol. Lett. 8, 1656 (1996).
[CrossRef]

Brackett, C. A.

C. A. Brackett, IEEE J. Sel. Areas Commun. 8, 948(1990).
[CrossRef]

Chen, R.

G. Jiang, R. Chen, Q. Zhou, J. Yang, M. Wang, and X. Jiang, IEEE Photon. Technol. Lett. 23, 6 (2011).

Chrostowski, L.

Chu, T.

H. Yamada, T. Chu, S. Ishida, and Y. Arakawa, Appl. Phys. Lett. 86, 191107 (2005).
[CrossRef]

Dong, L.

L. Dong, P. Hua, T. A. Birks, L. Reekie, and P. St. J. Russell, IEEE Photon. Technol. Lett. 8, 1656 (1996).
[CrossRef]

Fainman, Y.

K. Ikeda, M. Nezhad, and Y. Fainman, Appl. Phys. Lett. 92, 201111 (2008).
[CrossRef]

Flanders, D. C.

D. C. Flanders, H. Kogelnik, R. V. Schmidt, and C. V. Shank, Appl. Phys. Lett. 24, 194 (1974).
[CrossRef]

Hua, P.

L. Dong, P. Hua, T. A. Birks, L. Reekie, and P. St. J. Russell, IEEE Photon. Technol. Lett. 8, 1656 (1996).
[CrossRef]

Ikeda, K.

K. Ikeda, M. Nezhad, and Y. Fainman, Appl. Phys. Lett. 92, 201111 (2008).
[CrossRef]

Ishida, S.

H. Yamada, T. Chu, S. Ishida, and Y. Arakawa, Appl. Phys. Lett. 86, 191107 (2005).
[CrossRef]

Jaeger, N. A. F.

Jiang, G.

G. Jiang, R. Chen, Q. Zhou, J. Yang, M. Wang, and X. Jiang, IEEE Photon. Technol. Lett. 23, 6 (2011).

Jiang, X.

G. Jiang, R. Chen, Q. Zhou, J. Yang, M. Wang, and X. Jiang, IEEE Photon. Technol. Lett. 23, 6 (2011).

Kogelnik, H.

D. C. Flanders, H. Kogelnik, R. V. Schmidt, and C. V. Shank, Appl. Phys. Lett. 24, 194 (1974).
[CrossRef]

Lipson, M.

V. R. Almeida, C. A. Barrios, R. R. Panepucci, and M. Lipson, Nature 431, 1081 (2004).
[CrossRef]

Nezhad, M.

K. Ikeda, M. Nezhad, and Y. Fainman, Appl. Phys. Lett. 92, 201111 (2008).
[CrossRef]

Panepucci, R. R.

V. R. Almeida, C. A. Barrios, R. R. Panepucci, and M. Lipson, Nature 431, 1081 (2004).
[CrossRef]

Reekie, L.

L. Dong, P. Hua, T. A. Birks, L. Reekie, and P. St. J. Russell, IEEE Photon. Technol. Lett. 8, 1656 (1996).
[CrossRef]

Russell, P. St. J.

L. Dong, P. Hua, T. A. Birks, L. Reekie, and P. St. J. Russell, IEEE Photon. Technol. Lett. 8, 1656 (1996).
[CrossRef]

Schmidt, R. V.

D. C. Flanders, H. Kogelnik, R. V. Schmidt, and C. V. Shank, Appl. Phys. Lett. 24, 194 (1974).
[CrossRef]

Shank, C. V.

D. C. Flanders, H. Kogelnik, R. V. Schmidt, and C. V. Shank, Appl. Phys. Lett. 24, 194 (1974).
[CrossRef]

Shi, W.

Taylor, H. F.

Wang, M.

G. Jiang, R. Chen, Q. Zhou, J. Yang, M. Wang, and X. Jiang, IEEE Photon. Technol. Lett. 23, 6 (2011).

Wang, X.

Yamada, H.

H. Yamada, T. Chu, S. Ishida, and Y. Arakawa, Appl. Phys. Lett. 86, 191107 (2005).
[CrossRef]

Yang, J.

G. Jiang, R. Chen, Q. Zhou, J. Yang, M. Wang, and X. Jiang, IEEE Photon. Technol. Lett. 23, 6 (2011).

Yariv, A.

A. Yariv, IEEE J. Quantum Electron. 9, 919 (1973).
[CrossRef]

Yeh, P.

Zhang, W.

Zhou, Q.

G. Jiang, R. Chen, Q. Zhou, J. Yang, M. Wang, and X. Jiang, IEEE Photon. Technol. Lett. 23, 6 (2011).

Appl. Opt. (1)

Appl. Phys. Lett. (3)

H. Yamada, T. Chu, S. Ishida, and Y. Arakawa, Appl. Phys. Lett. 86, 191107 (2005).
[CrossRef]

K. Ikeda, M. Nezhad, and Y. Fainman, Appl. Phys. Lett. 92, 201111 (2008).
[CrossRef]

D. C. Flanders, H. Kogelnik, R. V. Schmidt, and C. V. Shank, Appl. Phys. Lett. 24, 194 (1974).
[CrossRef]

IEEE J. Quantum Electron. (1)

A. Yariv, IEEE J. Quantum Electron. 9, 919 (1973).
[CrossRef]

IEEE J. Sel. Areas Commun. (1)

C. A. Brackett, IEEE J. Sel. Areas Commun. 8, 948(1990).
[CrossRef]

IEEE Photon. Technol. Lett. (2)

G. Jiang, R. Chen, Q. Zhou, J. Yang, M. Wang, and X. Jiang, IEEE Photon. Technol. Lett. 23, 6 (2011).

L. Dong, P. Hua, T. A. Birks, L. Reekie, and P. St. J. Russell, IEEE Photon. Technol. Lett. 8, 1656 (1996).
[CrossRef]

Nature (1)

V. R. Almeida, C. A. Barrios, R. R. Panepucci, and M. Lipson, Nature 431, 1081 (2004).
[CrossRef]

Opt. Lett. (1)

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Figures (5)

Fig. 1.
Fig. 1.

Schematic structure view of the add–drop filter based on GACCs.

Fig. 2.
Fig. 2.

Relationships of the coupling coefficient and the gap.

Fig. 3.
Fig. 3.

(a) 2D schematic view of the add–drop filter; (b) 2D FDTD simulated spectra of through port and drop port.

Fig. 4.
Fig. 4.

(a) Micrograph of fabricated device; (b) SEM image of the grating coupler.

Fig. 5.
Fig. 5.

Normalized through-port and drop-port spectra.

Equations (3)

Equations on this page are rendered with MathJax. Learn more.

βa(λ)+βb(λ)=2π/Λ,
κa=ωε04Ea·Δn2Eadxdy,
κc=ωε04Ea·Δn2Ebdxdy,

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